I saw these on ebay:
Blue Bar Ends FZ1 FZ6 Fazer FZ1N FZ6N S2 05-09 07 08:eBay Motors (item 280403266534 end time Dec-27-09 22:47:26 PST)
I kind of want the gold color for some bling

as gold/black just looks sharp.
I emailed the seller and asked if they were same weight as OEM and he said:
"Hi Friend,
The weight of our item is similar OEM one.
Please take note.
Thanks!
Jay"
I think that means yes. But "similar" could mean Chinese quality and therefore not as heavy. I'm really hesitant to order from Hong Kong; shipping times and return procedures are not trivial.
I'm tempted to paint the OEM bar ends gold with clear coat.
Regarding less vibrations, I read here about folks putting lead weights into the bars and it helped a lot. But that means more weight and not sure the affect on the front suspension responsiveness -- perhaps very small.
Dennis